Add black frame behind app window (283acd20) · Commits · e / os / android_frameworks_base

core/java/android/view/SurfaceControl.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -65,7 +65,8 @@ public class SurfaceControl {
		private static native void nativeSetSize(long nativeObject, int w, int h);
		private static native void nativeSetTransparentRegionHint(long nativeObject, Region region);
		private static native void nativeSetAlpha(long nativeObject, float alpha);
		private static native void nativeSetMatrix(long nativeObject, float dsdx, float dtdx, float dsdy, float dtdy);
		private static native void nativeSetMatrix(long nativeObject, float dsdx, float dtdx,
		float dtdy, float dsdy);
		private static native void nativeSetFlags(long nativeObject, int flags, int mask);
		private static native void nativeSetWindowCrop(long nativeObject, int l, int t, int r, int b);
		private static native void nativeSetFinalCrop(long nativeObject, int l, int t, int r, int b);

services/core/java/com/android/server/wm/RemoteSurfaceTrace.java

+3 −2

Original line number	Diff line number	Diff line
		@@ -32,7 +32,7 @@ import java.io.DataOutputStream;
		// the surface control.
		//
		// See cts/hostsidetests/../../SurfaceTraceReceiver.java for parsing side.
		class RemoteSurfaceTrace extends SurfaceControl {
		class RemoteSurfaceTrace extends SurfaceControlWithBackground {
		static final String TAG = "RemoteSurfaceTrace";

		final FileDescriptor mWriteFd;
		@@ -41,7 +41,8 @@ class RemoteSurfaceTrace extends SurfaceControl {
		final WindowManagerService mService;
		final WindowState mWindow;

		RemoteSurfaceTrace(FileDescriptor fd, SurfaceControl wrapped, WindowState window) {
		RemoteSurfaceTrace(FileDescriptor fd, SurfaceControlWithBackground wrapped,
		WindowState window) {
		super(wrapped);

		mWriteFd = fd;

services/core/java/com/android/server/wm/SurfaceControlWithBackground.java

0 → 100644

+306 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License
		*/

		package com.android.server.wm;

		import android.graphics.PixelFormat;
		import android.graphics.Rect;
		import android.graphics.Region;
		import android.os.IBinder;
		import android.os.Parcel;
		import android.view.Surface;
		import android.view.Surface.OutOfResourcesException;
		import android.view.SurfaceControl;
		import android.view.SurfaceSession;

		/**
		* SurfaceControl extension that has background sized to match its container.
		*/
		class SurfaceControlWithBackground extends SurfaceControl {
		// SurfaceControl that holds the background behind opaque letterboxed app windows.
		private SurfaceControl mBackgroundControl;

		// Flags that define whether the background should be shown.
		private boolean mOpaque;
		private boolean mVisible;

		// Way to communicate with corresponding window.
		private WindowSurfaceController mWindowSurfaceController;

		// Rect to hold task bounds when computing metrics for background.
		private Rect mTmpContainerRect = new Rect();

		// Last metrics applied to the main SurfaceControl.
		private float mLastWidth, mLastHeight;
		private float mLastDsDx = 1, mLastDsDy = 1;
		private float mLastX, mLastY;

		public SurfaceControlWithBackground(SurfaceControlWithBackground other) {
		super(other);
		mBackgroundControl = other.mBackgroundControl;
		mOpaque = other.mOpaque;
		mVisible = other.mVisible;
		mWindowSurfaceController = other.mWindowSurfaceController;
		}

		public SurfaceControlWithBackground(SurfaceSession s, String name, int w, int h, int format,
		int flags, int windowType, int ownerUid,
		WindowSurfaceController windowSurfaceController) throws OutOfResourcesException {
		super(s, name, w, h, format, flags, windowType, ownerUid);

		// We should only show background when the window is letterboxed in a task.
		if (!windowSurfaceController.mAnimator.mWin.isLetterboxedAppWindow()) {
		return;
		}
		mWindowSurfaceController = windowSurfaceController;
		mLastWidth = w;
		mLastHeight = h;
		mOpaque = (flags & SurfaceControl.OPAQUE) != 0;
		mWindowSurfaceController.getContainerRect(mTmpContainerRect);
		mBackgroundControl = new SurfaceControl(s, "Background for - " + name,
		mTmpContainerRect.width(), mTmpContainerRect.height(), PixelFormat.OPAQUE,
		flags \| SurfaceControl.FX_SURFACE_DIM);
		}

		@Override
		public void setAlpha(float alpha) {
		super.setAlpha(alpha);

		if (mBackgroundControl == null) {
		return;
		}
		mBackgroundControl.setAlpha(alpha);
		}

		@Override
		public void setLayer(int zorder) {
		super.setLayer(zorder);

		if (mBackgroundControl == null) {
		return;
		}
		// TODO: Use setRelativeLayer(Integer.MIN_VALUE) when it's fixed.
		mBackgroundControl.setLayer(zorder - 1);
		}

		@Override
		public void setPosition(float x, float y) {
		super.setPosition(x, y);

		if (mBackgroundControl == null) {
		return;
		}
		mLastX = x;
		mLastY = y;
		updateBgPosition();
		}

		private void updateBgPosition() {
		mWindowSurfaceController.getContainerRect(mTmpContainerRect);
		final Rect winFrame = mWindowSurfaceController.mAnimator.mWin.mFrame;
		final float offsetX = (mTmpContainerRect.left - winFrame.left) * mLastDsDx;
		final float offsetY = (mTmpContainerRect.top - winFrame.top) * mLastDsDy;
		mBackgroundControl.setPosition(mLastX + offsetX, mLastY + offsetY);
		}

		@Override
		public void setSize(int w, int h) {
		super.setSize(w, h);

		if (mBackgroundControl == null) {
		return;
		}
		mLastWidth = w;
		mLastHeight = h;
		mWindowSurfaceController.getContainerRect(mTmpContainerRect);
		mBackgroundControl.setSize(mTmpContainerRect.width(), mTmpContainerRect.height());
		}

		@Override
		public void setWindowCrop(Rect crop) {
		super.setWindowCrop(crop);

		if (mBackgroundControl == null) {
		return;
		}
		if (crop.width() < mLastWidth \|\| crop.height() < mLastHeight) {
		// We're animating and cropping window, compute the appropriate crop for background.
		calculateBgCrop(crop);
		mBackgroundControl.setWindowCrop(mTmpContainerRect);
		} else {
		// When not animating just set crop to container rect.
		mWindowSurfaceController.getContainerRect(mTmpContainerRect);
		mBackgroundControl.setWindowCrop(mTmpContainerRect);
		}
		}

		@Override
		public void setFinalCrop(Rect crop) {
		super.setFinalCrop(crop);

		if (mBackgroundControl == null) {
		return;
		}
		if (crop.width() < mLastWidth \|\| crop.height() < mLastHeight) {
		// We're animating and cropping window, compute the appropriate crop for background.
		calculateBgCrop(crop);
		mBackgroundControl.setFinalCrop(mTmpContainerRect);
		} else {
		// When not animating just set crop to container rect.
		mWindowSurfaceController.getContainerRect(mTmpContainerRect);
		mBackgroundControl.setFinalCrop(mTmpContainerRect);
		}
		}

		/** Compute background crop based on current animation progress for main surface control. */
		private void calculateBgCrop(Rect crop) {
		// Track overall progress of animation by computing cropped portion of status bar.
		final Rect contentInsets = mWindowSurfaceController.mAnimator.mWin.mContentInsets;
		float d = contentInsets.top == 0 ? 0 : (float) crop.top / contentInsets.top;

		// Compute additional offset for the background when app window is positioned not at (0,0).
		// E.g. landscape with navigation bar on the left.
		final Rect winFrame = mWindowSurfaceController.mAnimator.mWin.mFrame;
		final int offsetX = (int) (winFrame.left * mLastDsDx * d + 0.5);
		final int offsetY = (int) (winFrame.top * mLastDsDy * d + 0.5);

		// Compute new scaled width and height for background that will depend on current animation
		// progress. Those consist of current crop rect for the main surface + scaled areas outside
		// of letterboxed area.
		mWindowSurfaceController.getContainerRect(mTmpContainerRect);
		final int backgroundWidth =
		(int) (crop.width() + (mTmpContainerRect.width() - mLastWidth) * (1 - d) + 0.5);
		final int backgroundHeight =
		(int) (crop.height() + (mTmpContainerRect.height() - mLastHeight) * (1 - d) + 0.5);

		mTmpContainerRect.set(crop);
		// Make sure that part of background to left/top is visible and scaled.
		mTmpContainerRect.offset(offsetX, offsetY);
		// Set correct width/height, so that area to right/bottom is cropped properly.
		mTmpContainerRect.right = mTmpContainerRect.left + backgroundWidth;
		mTmpContainerRect.bottom = mTmpContainerRect.top + backgroundHeight;
		}

		@Override
		public void setLayerStack(int layerStack) {
		super.setLayerStack(layerStack);

		if (mBackgroundControl == null) {
		return;
		}
		mBackgroundControl.setLayerStack(layerStack);
		}

		@Override
		public void setOpaque(boolean isOpaque) {
		super.setOpaque(isOpaque);
		mOpaque = isOpaque;
		updateBackgroundVisibility();
		}

		@Override
		public void setSecure(boolean isSecure) {
		super.setSecure(isSecure);
		}

		@Override
		public void setMatrix(float dsdx, float dtdx, float dtdy, float dsdy) {
		super.setMatrix(dsdx, dtdx, dtdy, dsdy);

		if (mBackgroundControl == null) {
		return;
		}
		mBackgroundControl.setMatrix(dsdx, dtdx, dtdy, dsdy);
		mLastDsDx = dsdx;
		mLastDsDy = dsdy;
		updateBgPosition();
		}

		@Override
		public void hide() {
		super.hide();
		mVisible = false;
		updateBackgroundVisibility();
		}

		@Override
		public void show() {
		super.show();
		mVisible = true;
		updateBackgroundVisibility();
		}

		@Override
		public void destroy() {
		super.destroy();

		if (mBackgroundControl == null) {
		return;
		}
		mBackgroundControl.destroy();
		}

		@Override
		public void release() {
		super.release();

		if (mBackgroundControl == null) {
		return;
		}
		mBackgroundControl.release();
		}

		@Override
		public void setTransparentRegionHint(Region region) {
		super.setTransparentRegionHint(region);

		if (mBackgroundControl == null) {
		return;
		}
		mBackgroundControl.setTransparentRegionHint(region);
		}

		@Override
		public void deferTransactionUntil(IBinder handle, long frame) {
		super.deferTransactionUntil(handle, frame);

		if (mBackgroundControl == null) {
		return;
		}
		mBackgroundControl.deferTransactionUntil(handle, frame);
		}

		@Override
		public void deferTransactionUntil(Surface barrier, long frame) {
		super.deferTransactionUntil(barrier, frame);

		if (mBackgroundControl == null) {
		return;
		}
		mBackgroundControl.deferTransactionUntil(barrier, frame);
		}

		private void updateBackgroundVisibility() {
		if (mBackgroundControl == null) {
		return;
		}
		if (mOpaque && mVisible) {
		mBackgroundControl.show();
		} else {
		mBackgroundControl.hide();
		}
		}
		}

services/core/java/com/android/server/wm/WindowState.java

+9 −0

Original line number	Diff line number	Diff line
		@@ -3203,6 +3203,15 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
		return !isInMultiWindowMode();
		}

		/** @return true when the window is in fullscreen task, but has non-fullscreen bounds set. */
		boolean isLetterboxedAppWindow() {
		final Task task = getTask();
		final boolean taskIsFullscreen = task != null && task.isFullscreen();
		final boolean appWindowIsFullscreen = mAppToken != null && !mAppToken.hasBounds();

		return taskIsFullscreen && !appWindowIsFullscreen;
		}

		/** Returns the appropriate bounds to use for computing frames. */
		private void getContainerBounds(Rect outBounds) {
		if (isInMultiWindowMode()) {

services/core/java/com/android/server/wm/WindowStateAnimator.java

+15 −1

Original line number	Diff line number	Diff line
		@@ -1200,7 +1200,8 @@ class WindowStateAnimator {
		if (DEBUG_WINDOW_CROP) Slog.d(TAG, "Applying decor to crop win=" + w + " mDecorFrame="
		+ w.mDecorFrame + " mSystemDecorRect=" + mSystemDecorRect);

		final boolean fullscreen = w.fillsDisplay();
		final Task task = w.getTask();
		final boolean fullscreen = w.fillsDisplay() \|\| (task != null && task.isFullscreen());
		final boolean isFreeformResizing =
		w.isDragResizing() && w.getResizeMode() == DRAG_RESIZE_MODE_FREEFORM;

		@@ -1526,6 +1527,19 @@ class WindowStateAnimator {
		}
		}

		/**
		* Get rect of the task this window is currently in. If there is no task, rect will be set to
		* empty.
		*/
		void getContainerRect(Rect rect) {
		final Task task = mWin.getTask();
		if (task != null) {
		task.getDimBounds(rect);
		} else {
		rect.left = rect.top = rect.right = rect.bottom = 0;
		}
		}

		void prepareSurfaceLocked(final boolean recoveringMemory) {
		final WindowState w = mWin;
		if (!hasSurface()) {